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<?php
/* $Id: starter_block.php,v 1.1.2.3 2009/08/07 07:30:46 rjs Exp $
*
* Block starter:
* Import a PDF page containing, and process all blocks. The blocks are
* retrieved via pCOS, and the block filling functions are used to
* visualize the blocks on the output page. A real-world application would
* of course fill the blocks with data retrieved from some external data
* source.
*
* required software: PPS 7 or above
* required data: input PDF
*/
/* This is where the data files are. Adjust as necessary. */
$searchpath = "../data";
$infile = "boilerplate.pdf";
$outfilename = "starter_block.pdf";
try {
$p = new PDFlib();
# This means we must check return values of load_font() etc.
$p->set_parameter("errorpolicy", "return");
$p->set_parameter("SearchPath", $searchpath);
/* we use "utf8" as textformat, this allows to use unicode encoding */
$p->set_parameter("textformat", "utf8");
if ($p->begin_document($outfilename, "") == 0) {
die("Error: " . $p->get_errmsg());
}
$p->set_info("Creator", "PDFlib starter sample");
$p->set_info("Title", "starter_block");
/* Open a PDF containing blocks */
$indoc = $p->open_pdi_document($infile, "");
if ($indoc == 0) {
die("Error: " . $p->get_errmsg());
}
/* Open the first $page */
$page = $p->open_pdi_page($indoc, 1, "");
if ($page == 0) {
die("Error: " . $p->get_errmsg());
}
$width = $p->pcos_get_number($indoc, "pages[0]/width");
$height = $p->pcos_get_number($indoc, "pages[0]/height");
$p->begin_page_ext($width, $height, "");
/* Place the imported $page on the output $page */
$p->fit_pdi_page($page, 0, 0, "");
/* Query the number of blocks on the first page */
$blockcount = $p->pcos_get_number($indoc, "length:pages[0]/blocks");
if ($blockcount == 0) {
die("Error: " . $infile . "does not contain any PDFlib blocks");
}
/* Loop over all blocks on the $page */
for ($i = 0; $i < $blockcount; $i++) {
/* Fetch the name and type of the $i-th block on the first page
* (one of Text/Image/PDF)
*/
$blockname = $p->pcos_get_string($indoc,
"pages[0]/blocks[" . $i . "]/Name");
$blocktype = $p->pcos_get_string($indoc,
"pages[0]/blocks[" . $i . "]/Subtype");
/* Visualize all text blocks */
if ($blocktype == "Text") {
$optlist = "fontname=Helvetica encoding=unicode " .
"fillcolor={rgb 1 0 0} " .
"bordercolor={gray 0} linewidth=0.25";
/* We simply use the $blockname as content */
if ($p->fill_textblock(
$page, $blockname, $blockname, $optlist) == 0) {
print("Warning: " . $p->get_errmsg());
}
}
}
$p->end_page_ext("");
$p->close_pdi_page($page);
$p->end_document("");
$p->close_pdi_document($indoc);
print "$outfilename generated";
}
catch (PDFlibException $e) {
die("PDFlib exception occurred in starter_block sample:\n" .
"[" . $e->get_errnum() . "] " . $e->get_apiname() . ": " .
$e->get_errmsg() . "\n");
}
catch (Exception $e) {
die($e);
}
$p = 0;
?>
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